Cop-holder



Sept. 30, l 930, E. R. SWANSON COP HOLDER Filed July QQ 1928 Patented cpt.. 30, 1930 TAT-ES ERNEST ROBERT SWNSON, OIF CRANSTON,

WINDING COMPANY', 0F BOSTON, MASSACHUSETTS,

Arum oeste RHODE IST-AN D, ASSIGNOR T 'UNIVERSAL A CORPORATION 0F MASSA.-

BOE-HOLDER .application led July 9,

' means for rotatably mounting the cop-holder on the Winding machine or other textile apparatus whereby the cop 'will be maintained uniformly in contact with the drum'by which it is driven.

Another object of the invention 'is to providemeans for mounting the cop-holder on the dead-spindle of a Winding machine or other textile apparatus whereby it is carried on anti-friction bearings to adapt it for high speed rotation Without excessive Wear of the parts.

Another object of the invention is to provide a cop-holder of simplied structure which is economical to manufacture and of greater durability and eiciency in use.

Further objects of the improvement are set forth in the following specication which describes a preferred form of construction of the invention as illustrated by the accompanying drawings. 1n the drawings:

Fig. 1 is a part sectional viewshowing the improved cop-holder mounted to rotate on a dead-spindle and carrying a conical cop or package driven from a cylindrical drum or drive-roll; and

Fig. 2 is a longitudinal section 0f the copholder, taken on the line 2-2 of Fig. 1.

In the present application the improved cop-holder is described as adapted for winding a conical cop on a paper core or support, but it is to be understood that the core may take other forms and be'constructedof any suitable material.

In friction or drum-driven Winding machines the cop or package is usually Wound on a cop-holder which is rotatably mounted on a dead-spindle and adapted to be driven through surface contact of the Winding with a rotating drum or drive-roll. As herein 1928. Serial No. 281,420.

shown the dead-spindle 11 is swiveled at the end of an arm 12 and is normally held in inclined relation with respect to the periphery of the drive-roll 13. The arm 12 may be suitably arranged to adapt the cop-holder to move away from the drive-roll as the package increases in size during the Winding. The cop may also be Wound in cylindrlcal form and various types ot cores or holders are employed for supporting the packa e at its center. ln some cases paper or car board tubes are used for this purpose y and in other instances Wooden, composition or ber cores or yarn-receivers are employed.

'As herein illustrated the yarn-receiver comprises a conical paper shell or tube T having a closed apex end andl an open base or butt end into which the cop-holder is adapted to be inserted.

The main body of the spindle 11 is preferably constructed in shouldered form, its rear or inner portion 15 being larger in diameter than the outer portion 16 thereof with the shoulder 17 intervening therebetween. The purpose of the shoulder 17 will be hereinafter more fully explained. The smaller p0rtibn 16 of the spindle 11 terminates in a conical tip 18.

As herein illustrated the cop-holder for mounting the tube or yarn-receiver T comprises an elongated cylindrical sleeve 19, the outer end of Which is formed with a conical boss 20, While at its opposite end is a hub 21 supporting a conical cupped flange or boss 22. The peripheries of the bosses 2O and 22 are tapered to correspond substantially With the interior of the conical tube T.

The outer end of the sleeve 19 is formed with an axially' disposed opening 23 which isthreaded for the reception of a hardened screw-plug 24. The inner end of the plug 24 is formed with a conical recess 25 which constitutes a bearing seat for the tip 18 of the spindle 11. The' plug 24 is maintained in gxed position in the opening 23 by means of a lock-nut 26 threaded onto the projecting portion of the plug and set up against the end of the boss 20. In this way the plug 24, after being properly positioned in the end of the sleeve 19, may be locked in its adi j usted position.

der 17 there is an annular groove 30.Y This constructionpermits the bearing ring 31 tof be slid along the portion 16 of the spindle 11 and forced on to the enlarged portion 29, so that the ring will be mounted: fast on the spindle with its end face abutting the shoulder 17, as clearly shown in Fig. 2.l Any ether suitable means may be employedrfor fastening the bearing ring 31 to the spindle 11, such as by pin or set-screw, whereby the ring will be prevented from sliding longitudinally of the spindle. Y i' Held in the counterbore 27 of the hub V21 on the sleeve 19 is a collar 32l whichA bears against the outer ring 28 of the bearing with a clearance around the enlarged portion 15 of the spindle 11. The collar 32 is retained rear or open end thereof. vIt, will be observed i' in position by means of set-screwsV 34 extending through the hub 21 at therear end of the sieeve-l.

The construction is such that the bearin constitutes means for taking both the atera and end thrust of the sleeve 19 on the spindle, as well as permitting the sleeve to rotate ffiolyat high speeds. Y :Due to this manner of mounting the sleeve 19 enthe spindle 11, the'tp 18`of the spindle need not be tightly seated inthe recess 25 in the plug 24, the plug being adjustably positioned with respect to the end of the spindle to center the outer end of the sleeve on the Vspindleto provide` for free*Y rotation. of the sleeve without undue play or vibration.

In order that the bearings at each end of the spindle may be readily lubricated, the sleeve 19 is'bored near its outer and inner ends at 37 and 38 respectively. A small amount of oil injected through the openings 37 and 38A maintains the bearings lubricated over long periods.

YTo prevent the free lubricant in the de vice fromzbeing thrown onto the material being wound,.the spind1ef11 carries a dishshaped collar 40 at its rearward end. The collar 40 may have an outwardly extending inclined flange of a diameter .slightly less than that of the cupped flange 22 on .the end of the s1eeve719 and disposed with'its rim projecting thereinto to'substantally Yclose the that any), oil :thrown rearwardly Vfrom the bearingsl will be caught in the flange on the collar 40, and inf'this way damage to and waste ef the yarn or thread in the p'ackage'will be prevented. i

l For thepurpose of detachably retaining ,0

the tube T on the cop-holder, a pair of springfingers 41 may be employed. Tl'rese fingers 41 arediametrically opposed on the periphery of thedevice with one end fastened Yto the sleeve 19 by screws 42 or throughother means. The 15 free ends of the fingers 41 project towards the base or butt end of the tube T, passing through openings 45 in the vertical wall'fof the flanged portion 22 of the sleeve. As shown in Fig. 1, each of the fingers 41 is arched intermediate its length with its free end directed towards the spindle 11 The terminal portions of the fingers 41 arelturned inwardly at 43 to engage under the rim of the flange on the collar 4Q. The fingers 41 are formed with outwardly projecting prongs 44'intermediate their ends which are adaptedto bite into the @interior of the tube. to secure it in place en the holder. l

Manually-operated means are usually provided for operating the collar 40 to release the holding means for the cop-tube or yarnreceiver. For this purpose the collar 40 may be slid forwardly on the spindle 11 to force the fingers 41 radially inward to withdraw the prongs 44 from the tube T whereby to permit removal or doifing of the completed cop from the holder.

It will be observed from the foregoing that the present invention provides a particularly7 simple, compact and efficient device for the purpose specified and one in which the parts are designed for economical manufacture. The method of mounting the cop-holder on the spindle 11 whereby the lateral and longitudinal thrust is taken by the ball-bearing is of considerable importance as providing that the holder will rotate freely without undue friction at the outer end bearing.

The improved arrangement of the bearings not only materially reduces the fric- `tional resistance to high-speed rotation of the ly under the pull so thatit is not necessary i toturnit byhand as is usually the case.

While the device is herein illustrated in a preferred embodiment it is to vbe understood that various modifications may be made in the structure and arrangement -of its parts without departing from'the spirit or scope of the invention. Therefore, without limiting myself-in this respect, I c1aim:

1. In combination with a spindle provided with a conical end bearing, a cop-holder rotatably supported on the spindle, means on the cop-holder cooperating with the conical bearing on the spindle to support the holder concentrically thereof, and a bearing at the opposite end of the cop-holder arranged to take the longitudinal thrust between the spindle and cop-holder in both directions whereby the conical bearing is relieved of all end thrust to eliminate friction at this point.

2. In combination with a spindle provided with a conical end bearing, a cop-holder rotatably supported on thespindle, an adjustable bearing in the cop-holder for cooperating with the conical bearing of the spindle to support the cop-holder concentricallyv l thereof, and a ball-bearing between the spindle and cop-holder adapted to take the longitudinal thrust of the cop-holder in both directions to relieve the conical bearing of all longitudinal thrust whereby it may be adj usted with the proper clearance to eliminate friction at this point.

3. In combination with a spindle provided with a conical bearing, a rotatable cop-holder comprising a sleeve mounted on the spindle, a threaded opening formed in one end of the sleeve, an annular recess formed in the opposite end of the sleeve, aplug mounted in the threaded o ening and adapted to rotate on the conical Ihearing of the spindle. and a ballbearing on the s indle disposed Within the annular recess o the sleeve for taking the thrust between the spindle and the sleeve in both directions.

4. In combination with a spindle provided 'with a conical tip at its outer end and having its major body portion formed of two diameters with a shoulder therebetween, a rotatable cop-holder lcomprising a sleeve mounted on the spindle, adjustable means in the end of the sleeve for receiving the tip of the spindle, a ball-bearing` at the op osite end of the sleeve abuttingthe shoul er on the spindle, and a collar carried by the sleeve for engaging the outer portion of the bearing whereby the latter takes both the lateral and longitudinal thrusts between the spindle and the sleeve.

5. The -combination with aspindleprovided with a conical tip ati-ts end and having its major body portion formed of two diameters with a shoulder therebetween. an elongated sleeve havin enlarged portions at its ends, a plug adjusta ly mounted in the'outer end of the sleeve and provided with a recess for receiving the tip of the spindle, a ball-bearin on the spindle abutting the shoulder, an

a collar mounted on the sleeve engagin the ball-bearing to prevent movement o the sleeve longltudinally of the spindle.

6. In combination with a spindle provided witha conical bearing at its end, a cop-holder rotatably supported on the spindle and thrust whereby the holder is adapted to rotate at ahigh rate of speed.

In testimony whereof I hereunto aix my signature.

` ERNEST ROBERT SWAN SON. 

